{"filing":{"accession_number":"0001580808-26-000048","cik":"0001580808","ticker":"ATEN","company_name":"A10 Networks, Inc.","form":"8-K","filing_date":"2026-09-14","report_date":"2026-09-09","primary_document":"aten-20260909.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1580808/000158080826000048/aten-20260909.htm"},"events":[{"id":33187,"run_id":30506,"accession_number":"0001580808-26-000048","anchor_item_number":"5.02","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"summary":"The Board appointed Mary C. Henry as a director effective October 5, 2026, expanding the Board from five to six members. This is a clear director appointment under Item 5.02(d). While the disclosure also mentions standard director compensation arrangements, the principal disclosed action is the appointment itself, making this an exec_appointment event that is material to investors as it affects board composition and governance.","company_name":"A10 Networks, Inc.","ticker":"ATEN","filing_date":"2026-09-14","form":"8-K","submitted_at":null,"items":[{"id":36559,"accession_number":"0001580808-26-000048","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The Board appointed Mary C. Henry as a director effective October 5, 2026, expanding the Board from five to six members. This is a clear director appointment under Item 5.02(d). While the disclosure also mentions standard director compensation arrangements, the principal disclosed action is the appointment itself, making this an exec_appointment event that is material to investors as it affects board composition and governance.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-14T13:06:48.666365+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":36559,"accession_number":"0001580808-26-000048","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The Board appointed Mary C. Henry as a director effective October 5, 2026, expanding the Board from five to six members. This is a clear director appointment under Item 5.02(d). While the disclosure also mentions standard director compensation arrangements, the principal disclosed action is the appointment itself, making this an exec_appointment event that is material to investors as it affects board composition and governance.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-14T13:06:48.666365+00:00","company_name":"A10 Networks, Inc.","ticker":"ATEN","filing_date":"2026-09-14"}]}